It happened with iOS 6 (twice!), and it looks like it's happening on iOS 7 again. YouTube user Jose Rodriguez shows off how to bypass your iPhone's lock screen on iOS 7 to peek into your photos and other places.

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The trick takes a little finesse, but works on any iPhone or iPad running iOS 7:

Swipe up on the lock screen to get to the Control Panel.

Open the stopwatch and head to the alarm.

Hold down the power button until the "Slide to Power Off" button comes up.

Hit the cancel button, then hit the home button twice, holding it down on the second press.

It takes a little bit to get it right, but it's doable once you know what you're doing. The good news? All you need to do to disable this is turn off Control Center on the lock screen. Head into Settings > Control Center and turn off "Access on Lock Screen."